Answer: dfrac{1}{10}

Step-by-step explanation:

Probability =dfrac{text{favorable outcomes}}{text{total outcomes}}

Given : A number cube is tossed and one card is randomly drawn.

Total outcomes for cube = 6

Total outcomes fro cards = 5

Number of yellow cards = 3

Event 1 : drawing 3 on cube .

P(E_1)=dfrac{1}{6}

Event 2 : drawing a yellow card .

P(E_2)=dfrac{3}{5}

Since both events are independent then probability of getting  3 on cube and a yellow card is P(E_1)times P(E_2)

i.e. text{P(3, yellow)}=dfrac{1}{6}timesdfrac{3}{5}=dfrac{1}{10}

Hence, P(3, yellow)= dfrac{1}{10}